Warm air device and electric water heater

Abstract

The utility model relates to hot water supply equipment, and discloses a warm air device and an electric water heater, the warm air device is used for the electric water heater, and the warm air device comprises a warm air shell, a warm air assembly and a flow guide part. A mounting cavity is formed in the warm air shell; the warm air assembly is mounted in the mounting cavity; one end of the flow guide part is hermetically connected with the warm air shell, and the other end of the flow guide part extends into the mounting cavity; the flow guide part is provided with a flow guide hole, the flow guide hole penetrates through the flow guide part and the side wall of the warm air shell in the axis direction of the flow guide part, and a pipeline penetrates through the flow guide hole. According to the warm air device, due to the fact that the pipeline of the electric water heater penetrates through the flow guide hole of the flow guide part and extends out of the warm air shell, the warm air assembly is installed in the installation cavity, and the flow guide part is connected with the warm air shell in a sealed mode, the pipeline of the electric water heater can be isolated from the warm air assembly through the flow guide part, and the good waterproof performance is achieved; and the safety and the reliability of the heating device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hot water supply equipment, in particular to a warm air device and an electric water heater. Background Art

[0002] In order to satisfy the user to use the electric water heater more comfortably in cold weather, the electric water heater has been added with a warm air blowing function. For example, a warm air device is integrated on the electric water heater, and the water inlet and outlet pipes of the electric water heater usually need to pass through the warm air device.

[0003] Although the parts of the inlet and outlet water pipes located inside the electric water heater usually have good sealing properties, the parts of the inlet and outlet water pipes extending to the heater are subject to the risk of leakage and condensation water entering the heater, which can easily cause short circuits in electrical components such as the fan and heater inside the heater, thereby causing safety accidents. Utility Model Content

[0004] The first technical problem solved by the utility model is to provide a heating device, which effectively solves the problems of water leakage in the water inlet and outlet pipes of the electric water heater, the formation of condensed water and the entry of condensed water into the heating device, causing safety accidents such as short circuits, and utilizes a guide part to isolate the water inlet and outlet pipes of the electric water heater from the heating component, thereby improving safety performance.

[0005] The second technical problem solved by the utility model is to provide an electric water heater, which effectively solves the problems of water leakage in the water inlet and outlet pipes of the electric water heater, the formation of condensed water and the entry into the heating device, causing safety accidents such as short circuits, and utilizes a guide part to isolate the water inlet and outlet pipes of the electric water heater from the heating component, thereby improving safety performance.

[0006] The first technical problem mentioned above is solved by the following technical solution:

[0007] A warm air device, used for an electric water heater, comprising:

[0008] A heater housing is formed with a mounting cavity;

[0009] A warm air assembly is installed in the installation cavity;

[0010] A guide portion, one end of which is sealed and connected to the heater housing, and the other end of which extends into the installation cavity;

[0011] The air guide portion is provided with an air guide hole, and the air guide hole penetrates the air guide portion and the side wall of the warm air housing along the axial direction of the air guide portion, and the air guide hole is used for a pipeline to pass through.

[0012] Compared with the background technology, the heating device of the utility model has the following beneficial effects: taking the electric water heater as an example, by arranging a guide part on the heating shell, the pipeline of the electric water heater can pass through the guide hole of the guide part, so that the guide part can isolate the pipeline of the electric water heater from the heating component in the heating shell. Water leakage or condensed water generated by the pipeline can be discharged from the heating shell through the guide hole, which has good waterproof performance and improves the safety and reliability of the heating device.

[0013] In one embodiment, the flow guide portion is a pair of flow guide tubes arranged at intervals, and each of the flow guide tubes is provided with the flow guide hole.

[0014] In one of the embodiments, the air guide portion is integrally formed with the heater housing.

[0015] In one embodiment, the heater housing comprises:

[0016] The bottom plate is provided with air inlets at both ends along the length direction;

[0017] The side plate is arranged around the bottom plate and together with the bottom plate and the water heater shell of the electric water heater, forms the installation cavity. The side plate is provided with an air outlet.

[0018] In one embodiment, the air outlet is arranged on the side plate located on one side in the width direction of the bottom plate, and the air outlet extends along the length direction of the side plate;

[0019] The warm air assembly comprises:

[0020] A fan and a heater, wherein the fan is arranged on one side of the bottom plate and close to the air outlet, and the heater is arranged on the other side of the bottom plate;

[0021] The air guide portion is arranged on the bottom plate and is located between the fan and the heater.

[0022] In one of the embodiments, the warm air assembly further includes an air guide plate, wherein the air guide plate is disposed on the bottom plate between a pair of the air inlets, and the heater is disposed on the air guide plate.

[0023] In one of the embodiments, the inner surface of the base plate is provided with an inclined surface inclined toward the fan, and the air guide plate is provided on the inclined surface so that the airflow generated by the fan blows toward the heater.

[0024] The above second technical problem is solved by the following technical solution:

[0025] An electric water heater, comprising:

[0026] The water heater shell is provided with a water inlet pipe and a water outlet pipe;

[0027] In the above-mentioned warm air device, one end of the guide portion extending into the installation cavity abuts against the outer wall of the water heater shell, and the water inlet pipe and the water outlet pipe face the guide hole.

[0028] Compared with the background technology, the electric water heater described in the utility model has the following beneficial effects: the electric water heater equipped with the heating device has a water inlet pipe and a water outlet pipe of the electric water heater isolated from the heating component respectively through the guide part, and has good waterproof performance compared with the existing electric water heaters, thereby improving safety and reliability.

[0029] In one of the embodiments, a pair of anti-electricity walls is further included, wherein one of the anti-electricity walls is connected to the water inlet pipeline through the diversion hole, and the other anti-electricity wall is connected to the water outlet pipeline through the diversion hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 This is a schematic structural diagram of a heating device according to an embodiment of the utility model;

[0032] Figure 2 An exploded view of an electric water heater according to an embodiment of the utility model;

[0033] Figure 3 for Figure 2 A cross-sectional view of an electric water heater is shown.

[0034] Description of reference numerals:

[0035] 1. Warm air housing; 101. Bottom plate; 102. Air inlet; 103. Side plate; 104. Air outlet; 105. Inclined surface; 2. Warm air assembly; 201. Fan; 202. Heater; 203. Air guide plate; 3. Flow guide part; 301. Flow guide pipe; 4. Water heater housing; 5. Water inlet pipe; 6. Water outlet pipe; 7. Electric shockproof wall; 8. Connector. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0037] In the description of the present application, it should be understood that the terms "upper", "lower", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0038] In the description of this application, unless otherwise specified, "plurality" means two or more. In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] When an existing electric water heater is integrated with a heating device, there is a risk of water leakage and condensed water splashing onto the electrical components of the heating device when the water inlet and outlet pipes of the electric water heater pass through the heating device, which can easily cause a short circuit and cause safety accidents such as fire.

[0040] Combine the following Figures 1 to 3 , describing an embodiment of the utility model.

[0041] According to an embodiment of the present utility model, on the one hand, as Figure 1 As shown, a heating device is provided, which mainly includes: a heating shell 1, a heating component 2 and a guide part 3.

[0042] The warm air device described in this embodiment is mainly used for electric water heaters, has good waterproof properties, and can improve safety and reliability.

[0043] Furthermore, the heater housing 1 is formed with an installation cavity. The heater assembly 2 is installed in the installation cavity for generating and blowing out warm air. One end of the air guide 3 is sealedly connected to the heater housing 1, and the other end extends into the installation cavity.

[0044] Specifically, the air guide portion 3 is provided with an air guide hole. The air guide hole penetrates the air guide portion 3 and the side wall of the heater housing 1 along the axial direction of the air guide portion 3. The air guide portion 3 is used for the pipeline to pass through, and the pipeline is isolated from the heater assembly 2 to prevent the pipeline from leaking or forming condensed water and entering the installation cavity, causing short circuits in various components in the heater assembly 2, and then causing safety accidents.

[0045] It can be seen that the heating device provided in the embodiment of the present application, taking the electric water heater as an example, provides a guide portion 3 on the heating housing 1 so that the pipeline of the electric water heater can pass through the guide hole of the guide portion 3, so that the guide portion 3 can isolate the pipeline from the heating component 2 in the heating housing 1. Water leakage or condensed water generated by the pipeline is discharged from the heating housing 1 through the guide hole, which has good waterproof performance and improves the safety and reliability of the heating device.

[0046] It should be noted that the embodiment of the present application does not limit the structure of the flow guide 3, and any existing structure can be selected as needed. For example, the flow guide 3 is provided with a flow guide hole, and multiple pipes of the electric water heater all pass through the flow guide hole.

[0047] In order to reduce the installation space occupied by the air guide 3 in the installation cavity, realize the miniaturization design of the heating device, and reduce the resistance of the air guide 3 to the air flow inside the heating device, in one embodiment, as Figure 1 As shown, the flow guide 3 is a pair of flow guide pipes 301 arranged at intervals. Each flow guide pipe 301 is provided with a flow guide hole along the axial direction, and the electric water heater is generally provided with a water inlet pipe 5 and a water outlet pipe 6. The water inlet pipe 5 and the water outlet pipe 6 pass through the flow guide hole of a flow guide pipe 301 respectively, that is, the water inlet pipe 5 and the water outlet pipe 6 are arranged in a one-to-one correspondence with the flow guide hole.

[0048] Furthermore, in one embodiment, the diameter of the guide hole is larger than the outer diameter of the water inlet pipe 5 and the water outlet pipe 6. That is, there is a gap between the guide hole and the water inlet pipe 5 and the water outlet pipe 6, so that the leaked water and condensed water of the water inlet pipe 5 and the water outlet pipe 6 can flow out smoothly from the gap.

[0049] It should be noted that the embodiment of the present application does not limit the sealing connection structure between the guide part 3 and the heater housing 1. It can be a snap-on sealing fixing structure, such as a snap connection, and a seal is provided at the snap to facilitate quick installation. It can also be set to a fastener-type fixing structure, such as a fastener cooperates with a sealing ring to seal and fix, and the structure is stable.

[0050] In one embodiment, Figure 1 and Figure 3As shown, the guide part 3 is integrally formed with the heater housing 1, and the two do not need to be assembled, which is convenient for use. The lower end of the guide part 3 is sealed and connected to the side wall of the heater housing 1 through a seal to further improve the waterproof performance of the guide part 3. The upper end of the guide part 3 is located in the installation cavity and abuts against the bottom surface of the water heater housing 4 to achieve a sealing effect. In addition, the guide part 3 can also support the water heater housing 4 to improve the connection stability between the water heater housing 4 and the heater housing 1.

[0051] In one embodiment, Figure 1 and Figure 2 As shown in FIG. 1 , the heater housing 1 mainly includes: a bottom plate 101 and side plates 103 arranged around the bottom plate 101. The bottom plate 101 has air inlets 102 opening downward at both ends along the length direction. Figure 1 As shown by arrow A in FIG. 4 . The water heater housing 4 of the electric water heater closes the opening formed by the side plate 103 and the bottom plate 101. That is, the side plate 103, the bottom plate 101 and the water heater housing 4 together form an installation cavity. An air outlet 104 is provided on one of the side plates 103 located on the outside. The warm air component 2 draws air from the air inlets 102 at both ends of the bottom plate 101 in the length direction, and blows it out from the air outlet 104 after heating, thereby realizing the warm air function.

[0052] Specifically, the upper end of the side plate 103 is also detachably fixedly connected to the lower end of the water heater housing 4, so that the warm air device is integrated with the electric water heater. The detachable fixed connection can be a snap-on fixed structure or a fastener-type fixed structure, and the embodiments of the present application do not impose too many restrictions on this.

[0053] It should be noted that the upper and lower directions described in the embodiments of the present application are as follows: Figure 3 shown.

[0054] In one embodiment, Figure 2 As shown, the air outlet 104 is arranged on the side plate 103 located on one side of the width direction of the bottom plate 101. Figure 1 As shown by arrow B in FIG. 1 , the air outlet 104 extends along the length direction of the side plate 103. The air outlet 104 is used in conjunction with the air inlet 102 to achieve uniform air discharge.

[0055] In one embodiment, Figure 2As shown, the warm air assembly 2 includes: a fan 201 and a heater 202. The fan 201 is arranged on one side of the bottom plate 101 and close to the air outlet 104, and the heater 202 is arranged on the other side of the bottom plate 101. In other words, the fan 201 and the heater 202 are separately arranged on the opposite sides of the bottom plate 101. Compared with the traditional structure in which the fan 201 and the heater 202 are integrated to avoid the water inlet pipe 5 and the water outlet pipe 6, the warm air device provided in the embodiment of the present application occupies less space, is convenient for installation and use, and is more beautiful.

[0056] In addition, the air guide 3 is disposed on the bottom plate 101 and is located between the fan 201 and the heater 202. That is, the fan 201 and the heater 202 are respectively located at opposite ends of the air guide 3, so that the air guide 3 is installed by utilizing the gap between the fan 201 and the heater 202, further reducing the occupied space of the heating device.

[0057] For example, in order to improve the air outlet effect of the warm air assembly 2, the fan 201 can be a crossflow fan. The crossflow fan includes a motor and a crossflow fan. The output shaft of the motor is connected to the crossflow fan, driving the crossflow fan to rotate and generate an airflow blowing toward the heater 202. The heater 202 can be a PTC (Positive Temperature Coefficient) heater. The PTC heater has stable resistance, high safety, small size, and easy installation.

[0058] It is understandable that in some other embodiments, the fan 201 and the heater 202 may also adopt any other conventional structures, and the embodiments of the present application do not impose too many limitations on this.

[0059] Further, in one embodiment, if Figure 1 and Figure 2 As shown, the warm air assembly 2 further includes an air guide plate 203. The air guide plate 203 is disposed on the bottom plate 101 between a pair of air inlets 102. The heater 202 is disposed on the air guide plate 203. The fan 201 inhales outside air from the air inlet 102 and blows the outside air toward the air guide plate 203. The air guide plate 203 guides the air flow to the heater 202, which is heated by the heater 202 and blown out to form warm air at the air outlet 104.

[0060] Furthermore, in one embodiment, if Figure 2 As shown, the inner surface of the bottom plate 101 is provided with an inclined surface 105 inclined toward the fan 201. The inclined surface 105 is used to install the air guide plate 203 so that the airflow generated by the fan 201 is blown toward the heater 202 through the air guide plate 203.

[0061] Specifically, the air guide plate 203 can be fixed on the inclined surface 105 by using a slot structure and a plurality of fasteners. The fasteners can be screws, and a plurality of screw holes are correspondingly opened on the inclined surface 105. The air guide plate 203 and the inclined surface 105 are also provided with a position avoidance groove of the air guide part 3. The heater 202 can be fixed on the air guide plate 203 by buckles.

[0062] According to an embodiment of the present utility model, on the other hand, Figure 3 As shown, an electric water heater is also provided, which mainly includes: a water heater housing 4 and a warm air device.

[0063] Specifically, an inner tank is provided inside the water heater housing 4, and a water inlet pipe 5 and a water outlet pipe 6 are provided on the inner tank. One end of the guide portion 3 extending into the installation cavity abuts against the outer wall of the water heater housing 4, and the water inlet pipe 5 and the water outlet pipe 6 face the guide hole. In addition, the water heater housing 4 is detachably connected to the warm air housing 1 for maintenance and use. The detachable connection method can be a snap-on type, or it can be set to a fastener connection form, and the embodiments of the present application do not impose too many restrictions on this.

[0064] The electric water heater installed with the heating device in the embodiment of the present application has a water inlet pipe 5 and a water outlet pipe 6 of the electric water heater isolated from the heating component 2 respectively through the guide part 3. Compared with the existing electric water heaters, it has good waterproof performance and improved safety and reliability.

[0065] In one embodiment, Figure 2 and Figure 3 As shown, the electric water heater further includes a pair of anti-electricity walls 7. The anti-electricity walls 7 are used to block the possible leakage of the electric water heater itself, and belong to the pipeline, and can be regarded as a part of the water inlet pipeline 5 and the water outlet pipeline 6. One of the anti-electricity walls 7 passes through the diversion hole to communicate with the water inlet pipeline 5, and the other anti-electricity wall 7 passes through the diversion hole to communicate with the water outlet pipeline 6. The pair of anti-electricity walls 7 are respectively arranged in the diversion hole, which can form a hidden structure, which is more beautiful.

[0066] Specifically, the upper ends of a pair of anti-electricity walls 7 are respectively connected to the water inlet pipe 5 or the water outlet pipe 6, and the lower ends are respectively connected to the joint 8, so as to transport the water source of the water inlet pipe 5 and the water outlet pipe 6 through the joint 8. The side wall of the anti-electricity wall 7 can be fixedly connected to the inner tank by threads. The pair of anti-electricity walls 7 and the warm air assembly 2 are isolated by the guide part 3, which has good waterproof performance.

[0067] In the specific contents of the above-mentioned specific implementation methods, the various technical features can be combined in any non-contradictory manner. In order to make the description concise, not all possible combinations of the above-mentioned technical features are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0068] The specific contents of the above specific implementations only express several implementations of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A warm air device for an electric water heater, characterized in that: include: A heater housing (1) is formed with a mounting cavity; A warm air assembly (2) is installed in the installation cavity; A guide portion (3), one end of which is sealedly connected to the heater housing (1), and the other end of which extends into the installation cavity; The guide portion (3) is provided with a guide hole, the guide hole penetrates the guide portion (3) and the side wall of the warm air housing (1) along the axial direction of the guide portion (3), and the guide hole is used for a pipeline to pass through.

2. The heating device according to claim 1, characterized in that: The flow guide portion (3) is a pair of flow guide tubes (301) arranged at intervals, and each of the flow guide tubes (301) is provided with the flow guide hole.

3. The heating device according to claim 1, characterized in that: The air guide portion (3) is integrally formed with the warm air housing (1).

4. The heating device according to any one of claims 1 to 3, characterized in that: The heater housing (1) comprises: The bottom plate (101) is provided with air inlets (102) at both ends along the length direction; The side plate (103) is arranged around the base plate (101) and together with the base plate (101) and the water heater housing (4) of the electric water heater, forms the installation cavity. The side plate (103) is provided with an air outlet (104).

5. The heating device according to claim 4, characterized in that: The air outlet (104) is arranged on the side plate (103) located on one side in the width direction of the bottom plate (101), and the air outlet (104) extends along the length direction of the side plate (103); The warm air component (2) comprises: A fan (201) and a heater (202), wherein the fan (201) is arranged on one side of the bottom plate (101) and close to the air outlet (104), and the heater (202) is arranged on the other side of the bottom plate (101); The air guide portion (3) is arranged on the bottom plate (101) and is located between the fan (201) and the heater (202).

6. The heating device according to claim 5, characterized in that: The warm air component (2) further comprises an air guide plate (203), wherein the air guide plate (203) is arranged on the bottom plate (101) between a pair of air inlets (102), and the heater (202) is arranged on the air guide plate (203).

7. The heating device according to claim 6, characterized in that: The inner surface of the bottom plate (101) is provided with an inclined surface (105) inclined toward the fan (201), and the air guide plate (203) is arranged on the inclined surface (105) so that the airflow generated by the fan (201) is blown toward the heater (202).

8. An electric water heater, characterized in that: include: The water heater housing (4) is provided with a water inlet pipe (5) and a water outlet pipe (6); In the heating device according to any one of claims 1 to 7, one end of the guide portion (3) extending into the installation cavity abuts against the outer wall of the water heater shell (4), and the water inlet pipe (5) and the water outlet pipe (6) are directly opposite to the guide hole.

9. The electric water heater according to claim 8, characterized in that: It also comprises a pair of anti-electricity walls (7), wherein one of the anti-electricity walls (7) passes through the guide hole to communicate with the water inlet pipeline (5), and the other anti-electricity wall (7) passes through the guide hole to communicate with the water outlet pipeline (6).

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